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Support type and encoderOptions parameters in toBlob polyfill.

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This commit is contained in:
ccd0 2015-10-25 21:23:19 -07:00
parent 673408f5e1
commit 832fb65cf5
1 changed files with 4 additions and 3 deletions
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7
src/General/lib/polyfill.coffee
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@ -3,12 +3,13 @@ Polyfill =
@toBlob() @toBlob()
toBlob: -> toBlob: ->
return if HTMLCanvasElement::toBlob return if HTMLCanvasElement::toBlob
HTMLCanvasElement::toBlob = (cb) -> HTMLCanvasElement::toBlob = (cb, type='image/png', encoderOptions) ->
data = atob @toDataURL()[22..] url = @toDataURL type, encoderOptions
data = atob url[url.indexOf(',')+1..]
# DataUrl to Binary code from Aeosynth's 4chan X repo # DataUrl to Binary code from Aeosynth's 4chan X repo
l = data.length l = data.length
ui8a = new Uint8Array l ui8a = new Uint8Array l
for i in [0...l] by 1 for i in [0...l] by 1
ui8a[i] = data.charCodeAt i ui8a[i] = data.charCodeAt i
cb new Blob [ui8a], type: 'image/png' cb new Blob [ui8a], {type}
$.globalEval "HTMLCanvasElement.prototype.toBlob = (#{HTMLCanvasElement::toBlob});" $.globalEval "HTMLCanvasElement.prototype.toBlob = (#{HTMLCanvasElement::toBlob});"